#include<bits/stdc++.h>
using namespace std;
signed main() {
    int a, b, c, d, e, f;
    cin >> a >> b >> c >> d >> e >> f;

    int x = max(a, max(b, max(c, d)));

    bool f1 = (x - a) > f || a < e;
    bool f2 = (x - b) > f || b < e;
    bool f3 = (x - c) > f || c < e;
    bool f4 = (x - d) > f || d < e;

    if(f1 + f2 + f3 + f4 > 1)
        cout << "Warning: please check all the tires!";
    else if(f1)
        cout << "Warning: please check #1!";
    else if(f2)
        cout << "Warning: please check #2!";
    else if(f3)
        cout << "Warning: please check #3!";
    else if(f4)
        cout << "Warning: please check #4!";
    else
        cout << "Normal";

    return 0;
}

